Clearing Password Check and BIOS Recovery
This section provides procedures for: Clearing the BIOS passwords Performing a BIOS recovery
Clearing the BIOS Passwords
To clear a lost BIOS password (user or supervisor password), you need to short the clear password hardware gap (G2201) located on the mainboard.
Figure 5-3. G2201 Hardware Gap
1.Shut down the computer and disconnect the AC adapter and all other peripherals from the computer.
2.Perform the “Removing the Middle Cover Assembly” procedure described on page
3.Use an electrical conductivity tool to short the two contacts on the hardware gap together.
4.Connect the
5.While resting the tool on the two contacts, plug one end of the AC adapter into the
6.Press the button to turn on the computer.
7.After the BIOS POST, remove the tool from the hardware gap.
8.Perform the “Replacing the Thermal Module” procedure described on page
9.Perform the “Replacing the Battery Pack” procedure described on page
10.Perform the “Replacing the Lower Case” procedure described on page
11.Turn on the computer and press F2 during bootup to access the Setup Utility. If no password prompt appears, the BIOS passwords have been cleared. If the prompt appears, repeat steps
12.Press F9 to load the system defaults.
13.Press F10 to save the changes you made and close the Setup Utility.
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